DE60214022D1 - METHOD FOR REDUCING ARTEFACT IN OBJECT IMAGES - Google Patents

METHOD FOR REDUCING ARTEFACT IN OBJECT IMAGES

Info

Publication number
DE60214022D1
DE60214022D1 DE60214022T DE60214022T DE60214022D1 DE 60214022 D1 DE60214022 D1 DE 60214022D1 DE 60214022 T DE60214022 T DE 60214022T DE 60214022 T DE60214022 T DE 60214022T DE 60214022 D1 DE60214022 D1 DE 60214022D1
Authority
DE
Germany
Prior art keywords
data signals
object images
detector
filtered
reducing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
DE60214022T
Other languages
German (de)
Other versions
DE60214022T2 (en
Inventor
W Zonneveld
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koninklijke Philips NV
Original Assignee
Koninklijke Philips Electronics NV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Koninklijke Philips Electronics NV filed Critical Koninklijke Philips Electronics NV
Publication of DE60214022D1 publication Critical patent/DE60214022D1/en
Application granted granted Critical
Publication of DE60214022T2 publication Critical patent/DE60214022T2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T5/00—Image enhancement or restoration
    • G06T5/20—Image enhancement or restoration by the use of local operators
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S378/00—X-ray or gamma ray systems or devices
    • Y10S378/901—Computer tomography program or processor

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Image Processing (AREA)

Abstract

The invention concerns a method of reducing artifacts in object images acquired by means of measurement signals sent by a source through the object onto a detector, which method comprises the steps of: a) adaptively filtering the data signals received by the detector in dependence of the data value; b) processing the data signals to indicate the attenuation of the measurement signals passing through the object; and c) reconstructing an image of the object based on the filtered and processed data signals. The method according to the invention is characterized in that step b) is performed on the adaptively filtered data signals resulting from step a).
DE60214022T 2001-03-29 2002-02-25 METHOD FOR REDUCING ARTEFACT IN OBJECT IMAGES Expired - Lifetime DE60214022T2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP01201180 2001-03-29
EP01201180 2001-03-29
PCT/IB2002/000593 WO2002080100A2 (en) 2001-03-29 2002-02-25 A method of reducing artifacts in object images

Publications (2)

Publication Number Publication Date
DE60214022D1 true DE60214022D1 (en) 2006-09-28
DE60214022T2 DE60214022T2 (en) 2007-03-29

Family

ID=8180085

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60214022T Expired - Lifetime DE60214022T2 (en) 2001-03-29 2002-02-25 METHOD FOR REDUCING ARTEFACT IN OBJECT IMAGES

Country Status (6)

Country Link
US (1) US6542571B2 (en)
EP (1) EP1433137B1 (en)
JP (1) JP4330881B2 (en)
AT (1) ATE336760T1 (en)
DE (1) DE60214022T2 (en)
WO (1) WO2002080100A2 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10201321B4 (en) * 2002-01-15 2011-02-24 Siemens Ag Computed tomography device and method with active adaptation of the measuring electronics
US6529575B1 (en) * 2002-04-29 2003-03-04 Ge Medical Systems Global Technology Company, Llc Adaptive projection filtering scheme for noise reduction
US7376255B2 (en) 2004-06-23 2008-05-20 General Electric Company System and method for image reconstruction
CN100563570C (en) * 2004-07-07 2009-12-02 皇家飞利浦电子股份有限公司 The minimizing of jail-bar artifacts in the cardiac cone beam CT reconstruction
US7991242B2 (en) 2005-05-11 2011-08-02 Optosecurity Inc. Apparatus, method and system for screening receptacles and persons, having image distortion correction functionality
CA2608119A1 (en) 2005-05-11 2006-11-16 Optosecurity Inc. Method and system for screening luggage items, cargo containers or persons
US7899232B2 (en) 2006-05-11 2011-03-01 Optosecurity Inc. Method and apparatus for providing threat image projection (TIP) in a luggage screening system, and luggage screening system implementing same
US8494210B2 (en) 2007-03-30 2013-07-23 Optosecurity Inc. User interface for use in security screening providing image enhancement capabilities and apparatus for implementing same
US7738729B2 (en) * 2006-08-02 2010-06-15 Morpho Detection, Inc. Systems and methods for reducing an artifact within an image
US8244016B2 (en) * 2009-07-20 2012-08-14 Wisconsin Alumni Research Foundation Method for suppressing streak artifacts in images produced with an x-ray imaging system
KR101973221B1 (en) 2011-09-07 2019-04-26 라피스캔 시스템스, 인코포레이티드 X-ray inspection system that integrates manifest data with imaging/detection processing
GB2564038B (en) 2016-02-22 2021-11-10 Rapiscan Systems Inc Systems and methods for detecting threats and contraband in cargo

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5416815A (en) * 1993-07-02 1995-05-16 General Electric Company Adaptive filter for reducing streaking artifacts in x-ray tomographic images
US5818896A (en) * 1996-11-18 1998-10-06 General Electric Company Methods and apparatus for three-dimensional and maximum intensity projection image reconstruction in a computed tomography system
DE19736242A1 (en) * 1997-08-20 1999-02-25 Siemens Ag Post-processing method for computer tomograph of medical X=ray diagnosis
US6215841B1 (en) * 1998-09-29 2001-04-10 General Electric Company Methods and apparatus for 3D artifact reduction
DE19853143C2 (en) * 1998-11-18 2000-09-07 Vamp Verfahren Und Apparate De Computer tomograph with reduced dose load or reduced pixel noise

Also Published As

Publication number Publication date
ATE336760T1 (en) 2006-09-15
WO2002080100A3 (en) 2004-04-29
WO2002080100A2 (en) 2002-10-10
US6542571B2 (en) 2003-04-01
EP1433137B1 (en) 2006-08-16
EP1433137A2 (en) 2004-06-30
US20020150200A1 (en) 2002-10-17
DE60214022T2 (en) 2007-03-29
JP4330881B2 (en) 2009-09-16
JP2004531306A (en) 2004-10-14

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Legal Events

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8320 Willingness to grant licences declared (paragraph 23)
8364 No opposition during term of opposition